Scania R620 V8 hauled Roadtrain climbing Marandoo Hill in manual gear.

If you drive Auto transmission trucks with heavy loads in steep hilly country here is one way I've found of ensuring you don't embarrass yourself and stall on the big hills. I had two extendable trailers loaded with large long Poly water pipes close to 45 metres in length. I apologise for the poor quality of the vid but for you trucking fans, especially the drivers I hope you can learn a little bit about how to avoid the old trap of thinking the auto transmission can do it all for you.